I currently have a Kohler toilet that clogs constantly and want to convert to a Toto model from the excellent advice on this forum. I want an elongated bowl at ADA height. What is the difference between the Drake, Drake II , and UltraMax ? Irregardless of bells and whistles I want the most powerful flush - my whole family has toilet fatigue. Secondly, I contacted all of the resellers listed on Toto's website for my area (Northeast Ohio) and none had any of the models in tan. Any suggestions on a good place to order one from? Thanks in advance.